The chart that John references looks good to me. DEC MCS (aka DEC standard 169) preceeded 8859-1 and differs from it in the following way:
Code points A0 A4 A6 AC AD AE AF B4 B8 BE D0 DE F0 FE FF were undefined (left open for future standardization that never occurred) A8 was general currency sign D7 Uppercase OE ligature DD Uppercase Y diaeresis F7 Lowercase oe ligature FD Lowercase y diaeresis - Tim
